diff --git a/worker-service/src/main/resources/db/migration/V3__alter_id_to_uuid.sql b/worker-service/src/main/resources/db/migration/V3__alter_id_to_uuid.sql
new file mode 100644
index 0000000..0748384
--- /dev/null
+++ b/worker-service/src/main/resources/db/migration/V3__alter_id_to_uuid.sql
@@ -0,0 +1,13 @@
+
+ALTER TABLE worker_tasks
+    ALTER COLUMN id TYPE UUID USING id::uuid,
+    ALTER COLUMN workflow_execution_id TYPE UUID USING workflow_execution_id::uuid,
+    ALTER COLUMN node_id TYPE UUID USING node_id::uuid;
+
+CREATE TABLE IF NOT EXISTS dead_letter_tasks (
+    id UUID PRIMARY KEY,
+    original_topic VARCHAR(255) NOT NULL,
+    task_payload TEXT NOT NULL,
+    exception_message TEXT,
+    failed_at TIMESTAMP NOT NULL
+);